Search found 57 matches

by pault
Mon Jan 19, 2015 8:11 pm
Forum: Installation questions
Topic: 1 wire alternator/voltage wiring question
Replies: 1
Views: 10877

1 wire alternator

On a one wire alternator, the one wire is your 12V (nominal). So anywhere that wire goes should be 12V.

Paul
by pault
Mon Aug 05, 2013 2:20 pm
Forum: Sensor-related questions
Topic: Sensor Resistor Wiring
Replies: 3
Views: 9518

More than one resistor

You will need one resistor per analog input. The location of the resistor shouldn't be that important.

The way you've drawn your circuit, all of the analog inputs will be shorted together.

Paul
by pault
Wed Apr 10, 2013 3:05 pm
Forum: Installation questions
Topic: Alternator warning light
Replies: 6
Views: 37860

Alternator Warning Lamp

So what you need is a pullup resistor on the W/R wire. It is my understanding that the alternator needs current flowing into the L terminal to get going. You will want a resistor equivalent to the the lamp resistance. Be careful of the wattage rating of the resistor. The 7.5A fuse (#25) implies a bi...
by pault
Tue Apr 09, 2013 3:06 pm
Forum: Installation questions
Topic: Alternator warning light
Replies: 6
Views: 37860

More information needed

I'm not exactly sure of the wiring changes you made. Did you just connect the alternator to the Dash 2, is the alternator still connected to the light and is the light still connected through the fuse to a 12V source?

Paul
by pault
Mon Mar 25, 2013 4:11 pm
Forum: General support questions
Topic: Open collector tacho output
Replies: 4
Views: 7486

Pull Up Resistor

Assuming that there isn't anything else to the tachometer output. All you need is a pull up resistor to either 5V or 12V. The value depends on the tachometer output capability and the input current requirements of the dash 2. Unfortunately I don't know either of these.

Paul
by pault
Wed Oct 13, 2010 1:01 pm
Forum: General support questions
Topic: Engine RPM Pulses
Replies: 7
Views: 20300

Confused?

Well I read both of the previous posts and I have to agree with both Dan and Midlana. My number is only correct if you are looking at the coil or the HT lead to the center of the distributor and I'm wrong if you are looking at a single spark plug lead. So I then went to my vehicle settings in analys...
by pault
Thu Sep 30, 2010 1:53 pm
Forum: General support questions
Topic: Dash2 speeds
Replies: 4
Views: 6456

A little more information

There are three potential issues. First as Support mentioned above, the minimum pulse width. You have calculated 0.86 mS. According to the knowledge base, you only need 0.25mS. So this should be okay. The other issue is how these sensors work. As you move the sensor closer/farther from the bolt head...
by pault
Mon Sep 27, 2010 3:04 pm
Forum: General support questions
Topic: Engine RPM Pulses
Replies: 7
Views: 20300

Two Pulses per Revolution

A Ford 1600 crossflow is a 4 stroke, 4 cylinder engine. So four ignition events (one per cylinder) in two revolutions (which is 4 strokes), which means 2 ignition pulses per revolution.

Paul
by pault
Tue Jul 27, 2010 1:04 pm
Forum: General software support
Topic: Set up DASH3 shift lights to flash when alarm is triggered.
Replies: 6
Views: 11207

Another possibility?

Is it possible to use a user variable to control the shift lights?

If so you should be able to create a math channel that will activate the lights when either water temp is high or the oil pressure is low.

Paul
by pault
Tue Jul 27, 2010 1:02 pm
Forum: Sensor-related questions
Topic: how to attach a throttle position sensor to the racing kart
Replies: 4
Views: 10077

Redundant

Installing both a gas pedal position sensor and a throttle position sensor seems redundant. Under normal operation as you move the gas pedal the throttle should move a proportional amount. The only time they will move differently is if there is a problem with the throttle cable.

Paul
by pault
Mon Apr 12, 2010 1:43 pm
Forum: General software support
Topic: Dash2 5V reference output
Replies: 6
Views: 13872

12V Regulators

Micrel makes a MIC29151-12WT. It is a 12V linear regulator that supports 0.35V of dropout (Vin to Vout) and 1.5A of output current in to TO-220 package. I've never used this part, so I have no first hand experience with it. I have used other LDO (0.5V) regulators extensively with no issues in non-au...
by pault
Wed Mar 24, 2010 1:21 pm
Forum: General software support
Topic: DL1 configuration start-stop-control
Replies: 10
Views: 16761

Which way is Plus/Minus

The DL1 by default expects forward acceleration to be in the direction from the DL1 front panel to the DL1 back panel. It can be configured to work the opposite way. The installation orientation setting is part of the configuration for the DL1.

Paul
by pault
Fri Nov 20, 2009 2:02 pm
Forum: Sensor-related questions
Topic: Using NPN wheel speed sensors with DL2
Replies: 2
Views: 7656

Installation

Using the "schematic" on the top right of that PDF, you would replace the load with a 1K ohm 1/4 watt pull-up resistor and connect the black wire to a digital/frequency input on the DL2

Paul
by pault
Fri Nov 20, 2009 1:56 pm
Forum: Installation questions
Topic: Dash 1 fit in DIN sized radio hole?
Replies: 3
Views: 8274

Dash 1?

Do you really want to mount your dash in the center console as opposed to somewhere you can easily see it while driving? Or do you mean a DL-1? A DL-1 will definitely fit there.

Paul
by pault
Mon Nov 02, 2009 2:11 pm
Forum: Installation questions
Topic: Quick resistor query
Replies: 6
Views: 15681

Choice

Not knowing the circuit it is going in, makes an intelligent decision impossible. So if 1W was what you wanted but can't find, then you should go to 2W and have some margin. Perhaps you can give us more information to help you make a better decision.

Paul

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